LISI 2012
45
95.4
%
Of sorted waste
-8
%
In water consumption
savings
-5
%
In energy savings
tance of a specialist company. 44 leaks were identified
and eliminated, generating a saving of 63,636 kWh/year
(or 0.8% of annual consumption). This same site reduced
its consumption of gas by 204,930 kWh/year, thanks to
installation of the pipes in the heating plant.
Electrical energy is most frequently used for supplying the
production machines. It represents 62% of the Group’s
consumption. For its part, natural gas represents 37% of
the primary consumption of the Group and is used princi-
pally for the heating of buildings and for heat treatment
operations. The LISI AUTOMOTIVE division alone absorbs
72%of the energy required for the operation of the Group’s
plants, compared with 25% for LISI AEROSPACE and 3% for
LISI MEDICAL. This variance is explained by the size of the
machines and the number of parts manufactured.
The management of waste
The best technologies are sought in order to reduce the
environmental footprint and to anticipate any future
regulations. In particular, they are applied on the surface
treatment lines because their atmospheric and water
waste output can have consequences on the surrounding
environment if they are not controlled. In this way, the LISI
AUTOMOTIVE plant at Kierspe (Germany) as a bio-filter for
treating atmospheric waste from the surface treatment
line. The plant at Villefranche-de-Rouergue has also
invested in the efficiency of its waste water treatment
station.
The LISI AUTOMOTIVE division is the largest producer of
waste, as a result of the large quantities of materials used
and produced, but this division is also the one which best
sorts its waste – 97% of the waste is sorted.
The LISI AEROSPACE division is not far behind, because,
in one year, the proportion of waste sorted has increased
from 83% to 90%. The production plants principally
generate metallic waste (65% of the total quantity of
waste produced). These are the subject of material
recycling. The LISI MEDICAL division accounts for 1.4% of
the waste produced.
